I'm selling this because it didn't work for my dog. The battery is dead, so please purchase a new one to use it. It takes a 9V battery, which isn't very common, so I'm including the dead battery for reference. If you don't need it, I won't include it when I ship, so please let me know in the comments when we communicate (^^) The color is black and white. I bought it for 3200 yen. [Product Description] Detects barking and emits ultrasonic sound. Gentle training with harmless sound waves. Harmless to both humans and dogs. Compared to training with electric current, It's gentle on dogs and can be used on large, medium, and small dogs. 3-level sensitivity adjustment is possible. You can adjust the sensitivity in 3 levels according to the training effect. Please adjust it according to the situation of your dog. Product size: Approximately 16.8 x 13.5 x 13.5 cm Weight: Approximately 300g Power supply: 1 x 9V battery (sold separately) *Specifications and design may be changed without notice for improvement.